25952-50-5

Basic information

• Product Name: 2-(3',3'-dimethyl-6-nitrospiro[chromene-2,2'-indolin]-1'-yl)ethyl methacrylate
• Synonyms: 2-(3',3'-dimethyl-6-nitrospiro[chromene-2,2'-indolin]-1'-yl)ethyl methacrylate
• CAS NO: 25952-50-5
• Molecular Formula: C24H24N2O5
• Molecular Weight: 420.46
• EINECS: -0
• Mol File: 25952-50-5.mol
• Article Data: 15

Chemical Properties

• Melting Point: 98 - 101 °C
• Boiling Point: 576.1±50.0 °C(Predicted)
• Density: 1.30±0.1 g/cm3(Predicted)
• CAS DataBase Reference: 2-(3',3'-dimethyl-6-nitrospiro[chromene-2,2'-indolin]-1'-yl)ethyl methacrylate(CAS DataBase Reference)
• NIST Chemistry Reference: 2-(3',3'-dimethyl-6-nitrospiro[chromene-2,2'-indolin]-1'-yl)ethyl methacrylate(25952-50-5)
• EPA Substance Registry System: 2-(3',3'-dimethyl-6-nitrospiro[chromene-2,2'-indolin]-1'-yl)ethyl methacrylate(25952-50-5)

Safety Data

• Hazardous Substances Data: 25952-50-5(Hazardous Substances Data)

Usage

General Description

2-(3',3'-dimethyl-6-nitrospiro[chromene-2,2'-indolin]-1'-yl)ethyl methacrylate is a chemical compound consisting of a chromene and indolin ring structure that is attached to an ethyl methacrylate group. The compound features a nitro group and two methyl groups, which contribute to its unique and complex molecular structure. This chemical has the potential for various applications, such as in polymer synthesis, drug discovery, and material science. Its spirocyclic structure and functional groups make it a valuable building block for the development of advanced materials and pharmaceuticals. Additionally, its methacrylate group suggests its potential use in polymerization reactions and as a monomer for the production of functionalized polymers.

Upstream product

• 16111-07-2 2-(3',3'-dimethyl-6-nitro-3'H-spiro[chromene-2,2'-indol]-1'-yl)-ethanol 
• 920-46-7 Methacryloyl chloride 
• 97-51-8 5-Nitrosalicylaldehyde 
• 1640-39-7 2,3,3-trimethylindoleniune 
• 29636-94-0 1-(2-hydroxyethyl)-2,3,3-trimethyl-3H-indol-1-ium bromide 
• 169233-07-2 (S)-(-)-methacryloyl-L-lactic acid 
• 98352-39-7 C₂₄H₂₄N₂O₅ 
• 79-41-4 poly(methacrylic acid) 

Downstream Products

• 98352-39-7 C₂₄H₂₄N₂O₅ 
• 87495-24-7 C₂₄H₂₄N₂O₅ 

Relevant articles and documents

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Synthesis and characterization of new spiropyran micrometer-sized photochromic fluorescent polymeric particles of narrow size distribution by a swelling process

Photochromic fluorescent uniform micrometer-sized particles were prepared in two ways: (1) Swelling of polystyrene (PS) and poly(styrene-butylmethacrylate) (P(S-BMA)) template particles with spiropyran dye (FSP) to obtain PS/FSP and P(S-BMA)/FSP uniform particles; (2) A similar swelling process, replacing FSP by AIBN, styrene and a spiropyran monomer (MSP), followed by co-polymerization of the monomers within the swollen microspheres to obtain P(S-BMA)/P(S-MSP) uniform particles. The spiropyran dyes are not fluorescent in water or in non-polar organic solvents. In contrast, the dyes encapsulated within the particles exhibit strong red fluorescence in the merocyanine conformation. Fluorescence measurements reveal that the P(S-BMA)/FSP microspheres exhibit higher fluorescence than the PS/FSP particles. The microspheres aqueous dispersion was exposed to alternate UV and visible light cycles and it was found that the fluorescence intensity of the PS/FSP and the P(S-BMA)/FSP particles decreased by 30% of its original value after 5 photoswitching cycles while that of the P(S-BMA)/P(S-MSP) particles remained the same.

Spectroscopic analysis of metal ion binding in spiropyran containing copolymer thin films

In this article, we describe the synthesis and characterization of a series of spiropyran containing copolymers that were used as colorimetric sensors for a series of divalent metal ions. The composition of spiropyran contained in the polymer backbone was varied from 10?100 mol % to investigate the influence of free volume and sterics on the photochromic response. Fourier transform-infrared (FT-IR) spectroscopy was used to characterize the photoinduced conversion, as well as the merocyanine?metal ion (MC?M2+) interaction. FT-IR spectra were analyzed using chemometric methods to elucidate the chemical binding environment between MC and M2+ and to selectively identify different metal ions bound to MC. By means of UV?vis absorption spectroscopy, we also demonstrate that each metal ion gives rise to a unique colorimetric response that is dependent on the amount of spiropyran comonomer contained in the polymer backbone and that by increasing the concentration of chromophore in the copolymer, the selectivity between different metal ions decreases. With the use of chemometric methods, UV?vis spectra can be analyzed to quantitatively identify metal ions in a concentration range from 1 ?M to 100 mM.

Photo, pH, and thermo triple-responsive spiropyran-based copolymer nanoparticles for controlled release

A spiropyran-based amphiphilic random copolymer was synthesized and self-assembled into photo-, pH-, and thermo-responsive micellar nanoparticles. The triple-stimuli triggered morphological changes of the nanoparticles were revealed by TEM and DLS. Highly efficient controlled release of encapsulated molecules, coumarin 102, from the nanoparticles under stimulation of UV light, acid and the combined stimuli could be realized.

Unlocking Chemically Encrypted Information Using Three Types of External Stimuli

Encryption is critical to information security; however, existing chemical-based information encryption strategies are still in their infancy. We report here a new approach to chemical encryption involving a supramolecular gel QR (quick response) code wit